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staging: line6: drop dump sysfs attr 

Once further sysfs attrs have been removed it will also be possible to
drop prog_data and other pieces which we keep for now.

Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stefan Hajnoczi 2012-11-22 20:48:44 +01:00 committed by Greg Kroah-Hartman
parent b772fe9e33
commit 980688f9d7
1 changed files with 3 additions and 57 deletions
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60
drivers/staging/line6/pod.c
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@ -137,24 +137,6 @@ static char *pod_alloc_sysex_buffer(struct usb_line6_pod *pod, int code,
size);
}
/*
Send channel dump data to the PODxt Pro.
*/
static void pod_dump(struct usb_line6_pod *pod, const unsigned char *data)
{
int size = 1 + sizeof(pod->prog_data);
char *sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_DUMP, size);
if (!sysex)
return;
/* Don't know what this is good for, but PODxt Pro transmits it, so we
* also do... */
sysex[SYSEX_DATA_OFS] = 5;
memcpy(sysex + SYSEX_DATA_OFS + 1, data, sizeof(pod->prog_data));
line6_send_sysex_message(&pod->line6, sysex, size);
memcpy(&pod->prog_data, data, sizeof(pod->prog_data));
kfree(sysex);
}
/*
Store parameter value in driver memory.
*/
@ -411,7 +393,9 @@ static ssize_t pod_send_store_command(struct device *dev, const char *buf,
if (!sysex)
return 0;
sysex[SYSEX_DATA_OFS] = 5; /* see pod_dump() */
/* Don't know what this is good for, but PODxt Pro transmits it, so we
* also do... */
sysex[SYSEX_DATA_OFS] = 5;
ret = pod_resolve(buf, block0, block1, sysex + SYSEX_DATA_OFS + 1);
if (ret) {
kfree(sysex);
@ -512,41 +496,6 @@ static ssize_t pod_get_name_buf(struct device *dev,
buf);
}
/*
"read" request on "dump" special file.
*/
static ssize_t pod_get_dump(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct usb_interface *interface = to_usb_interface(dev);
struct usb_line6_pod *pod = usb_get_intfdata(interface);
int retval = line6_dump_wait_interruptible(&pod->dumpreq);
if (retval < 0)
return retval;
memcpy(buf, &pod->prog_data, sizeof(pod->prog_data));
return sizeof(pod->prog_data);
}
/*
"write" request on "dump" special file.
*/
static ssize_t pod_set_dump(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct usb_interface *interface = to_usb_interface(dev);
struct usb_line6_pod *pod = usb_get_intfdata(interface);
if (count != sizeof(pod->prog_data)) {
dev_err(pod->line6.ifcdev,
"data block must be exactly %d bytes\n",
(int)sizeof(pod->prog_data));
return -EINVAL;
}
pod_dump(pod, buf);
return sizeof(pod->prog_data);
}
/*
Identify system parameters related to the tuner.
*/
@ -943,7 +892,6 @@ POD_GET_SYSTEM_PARAM(tuner_pitch, 1);
/* POD special files: */
static DEVICE_ATTR(device_id, S_IRUGO, pod_get_device_id, line6_nop_write);
static DEVICE_ATTR(dump, S_IWUSR | S_IRUGO, pod_get_dump, pod_set_dump);
static DEVICE_ATTR(dump_buf, S_IWUSR | S_IRUGO, pod_get_dump_buf,
pod_set_dump_buf);
static DEVICE_ATTR(finish, S_IWUSR, line6_nop_read, pod_set_finish);
@ -1056,7 +1004,6 @@ static int pod_create_files2(struct device *dev)
int err;
CHECK_RETURN(device_create_file(dev, &dev_attr_device_id));
CHECK_RETURN(device_create_file(dev, &dev_attr_dump));
CHECK_RETURN(device_create_file(dev, &dev_attr_dump_buf));
CHECK_RETURN(device_create_file(dev, &dev_attr_finish));
CHECK_RETURN(device_create_file(dev, &dev_attr_firmware_version));
@ -1195,7 +1142,6 @@ void line6_pod_disconnect(struct usb_interface *interface)
properties->device_bit, dev);
device_remove_file(dev, &dev_attr_device_id);
device_remove_file(dev, &dev_attr_dump);
device_remove_file(dev, &dev_attr_dump_buf);
device_remove_file(dev, &dev_attr_finish);
device_remove_file(dev, &dev_attr_firmware_version);